Note 3 — Chapter IV · THE MANNER OF HIS BIRTH
Reading edition
A study of genius shows that in a percentage of cases so large as to exclude the possibility of coincidence, the exceptional man, whether in the world of action, of art, or of letters, seems to inherit his magnificent powers through the female line. Sir Francis Galton, it is true, did not make a great point of this curious observation, but the tendency of more recent analyses is all in the direction of confirming the hypothesis; and it would seem to hold good in the converse proposition, namely, that the exceptional woman inherits her qualities from her father.